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There are 30 coins in a bag of which 10 are gold. If 25 of the coins are rare, then the number of rare gold coins in the bag could be any number from
A) 3 to 5
B) 3 to 10
C) 5 to 10
D) 10 to 15
E) 10 to 25
Answer: C
Source: Economist
A) 3 to 5
B) 3 to 10
C) 5 to 10
D) 10 to 15
E) 10 to 25
Answer: C
Source: Economist
